package com.iheima.reggie_take.controller;

/**
 * Created with IntelliJ IDEA.
 * ClassName: EmployeeController
 * Package: com.iheima.reggie_take.controller
 * Description:
 * User: fzykd
 *
 * @Author: LQH
 * Date: 2023-01-16
 * Time: 14:52
 */
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.iheima.reggie_take.common.R;
import com.iheima.reggie_take.entity.Employee;
import com.iheima.reggie_take.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    private EmployeeService employeeService;

    /**
     * 员工登录
     * @param request
     * @param employee
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee){

        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);

        //3、如果没有查询到则返回登录失败结果
        if(emp == null){
            return R.error("登录失败");
        }

        //4、密码比对，如果不一致则返回登录失败结果
        if(!emp.getPassword().equals(password)){
            return R.error("登录失败");
        }

        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if(emp.getStatus() == 0){
            return R.error("账号已禁用");
        }

        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute("employee",emp.getId());
        return R.success(emp);
    }

    /**
     * 员工退出
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理Session中保存的当前登录员工的id
        request.getSession().removeAttribute("employee");
        return R.success("退出成功");
    }

    /**
     * 新增员工
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(HttpServletRequest request,@RequestBody Employee employee){
        log.info("新增员工，员工信息：{}",employee.toString());

        //设置初始密码123456，需要进行md5加密处理
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));

        //统一添加和修改 字段的统一处理
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//
//        //获得当前登录用户的id
//        Long empId = (Long) request.getSession().getAttribute("employee");
//
//        employee.setCreateUser(empId);
//        employee.setUpdateUser(empId);

        employeeService.save(employee);

        return R.success("新增员工成功");
    }

    //员工的分页查询
    // employee/page?page=1&pageSize=10
    @GetMapping("/page")
    public R<Page> page(Integer page,Integer pageSize,String name){
        log.info("page {},pageSize {},name {}",page,pageSize,name);

        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> queryWrapper = new LambdaQueryWrapper();
        //添加条件
        queryWrapper.like(StringUtils.isNotEmpty(name), Employee::getName,name);
        //排序
        queryWrapper.orderByDesc(Employee::getUpdateTime);

        employeeService.page(pageInfo,queryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id修改员工信息
     * @PutMapping 是更新请求
     * @param employee
     * @return
     */
    //禁用员工信息
    @PutMapping
    public R<String> update(
            HttpServletRequest request,
            @RequestBody Employee employee){
        log.info(employee.toString());
//        Long empId = (Long) request.getSession().getAttribute("employee");
//        employee.setUpdateUser(empId);
//        employee.setUpdateTime(LocalDateTime.now()); //修改时间
        employeeService.updateById(employee);

        return R.success("员工信息修改成功");
    }


    /**
     * 根据id查询员工信息
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        log.info("根据id查询员工信息...");
        Employee employee = employeeService.getById(id);
        if (employee != null){
            return R.success(employee);
        }
        return R.error("没有查询到对应员工信息");
        //获取id修改 虽然只是编写了编辑的接口 是根据id进行查询 修改之后 点击保存 保存调用的update方法
    }

}